This script is Copyright (C) 2009-2017 Tenable Network Security, Inc.
The remote Red Hat host is missing one or more security updates.
Updated krb5 packages that fix a security issue are now available for
Red Hat Enterprise Linux 2.1 and 3.
This update has been rated as having critical security impact by the
Red Hat Security Response Team.
Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third party, the Key Distribution Center (KDC).
An input validation flaw was found in the ASN.1 (Abstract Syntax
Notation One) decoder used by MIT Kerberos. A remote attacker could
use this flaw to crash a network service using the MIT Kerberos
library, such as kadmind or krb5kdc, by causing it to dereference or
free an uninitialized pointer or, possibly, execute arbitrary code
with the privileges of the user running the service. (CVE-2009-0846)
All krb5 users should upgrade to these updated packages, which contain
a backported patch to correct this issue. All running services using
the MIT Kerberos libraries must be restarted for the update to take
See also :
Update the affected packages.
Risk factor :
Critical / CVSS Base Score : 10.0